Regulation 10

Where the Authority has issued a public notice, it may at any time during the period starting on the date of issue of the public notice and ending at the cut‑off time of the auction day or allotment day specified in the public notice, vary the amount of Government securities or Treasury Bills specified in the public notice to be made available for allotment, in which event the Authority must, as soon as possible, publish a notice to the general public of the variation in a manner as will secure adequate publicity for the fact of the variation.

To avoid doubt, a variation under paragraph (1) does not affect the validity of any application to purchase Government securities or Treasury Bills made pursuant to the public notice and before the variation.